This small museum once served as a royal hunting pavilion for King Otto Friedrich Ludwig.

The oldest standing Byzantine church in Athens is tucked within a monastery in the middle of an upscale shopping district.

An ancient octagonal weather station named for the eight Greek gods of wind.

Where commuters walk through remnants of an ancient Greek necropolis.

Legend says this sacred tree was a gift from goddess Athena.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

No one is sure if the world's fourth-largest diamond had been found in a rubbish heap or was pawned by Napoleon's mom.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

A small etching on the white marble parapet was written in runic script by a Viking mercenary.

A marvel of Byzantine engineering under the streets of Istanbul.

This crucial gathering spot along the "hippie trail" still displays old notes between traveling beatniks and backpackers.

The most metal church of all time was built in record time because of an international, pious pissing contest.

Have tea in a cemetery with a dazzling view of Istanbul.

A fountain standing as a testament to a doomed alliance.

Ancient serpentine sacrifice holder that has stood the test of time.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

This historic hotel preserves many treasures from its heyday hosting passengers on the Orient Express.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

This store decorated with Japanese and underground pop culture items has been the centre of Barcelona alternative fashion scenes for more than a decade.

An early 20th-century bullring converted into a modern shopping center.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

This semi-secret storybook hedge maze is also the oldest garden in the city.

A beautiful little museum hidden away in the heart of Barcelona holds a treasure trove of Ancient Egyptian artifacts